Which two manuals are essential for a working knowledge in elevator installation?

The correct answer highlights the importance of the NEC (National Electrical Code) and ASME Code (American Society of Mechanical Engineers Code) for professionals involved in elevator installation.

The NEC provides guidelines on safe electrical installations, ensuring that all wiring and electrical components meet regulatory standards for safety and performance. This is crucial in the context of elevators because they rely heavily on electrical systems for various functionalities, including traction, control systems, and safety mechanisms.

On the other hand, the ASME Code, specifically ASME A17.1, governs elevators and escalators, detailing the safety requirements for their design, construction, installation, and maintenance. It addresses critical aspects such as the mechanical and safety standards, which help prevent accidents and ensure user safety.

Together, these two codes provide a comprehensive framework that ensures the installation process adheres to both electrical safety and mechanical integrity standards, which is essential for the functioning and safety of elevators. Understanding and applying these guidelines is fundamental for anyone working in elevator installation to ensure compliance and safety.